Explosion-motor.



J. L. THIVOLLE. EXPLOSION MOTOR. APPLICATION IILEDAUG. 13, 1912.

'Patented Feb. i?, wm.

narran s'rnfrns ra'rnnr ernten,

JOSEPH JT JON THIVOIJLE, OF DIJON, FRANCE, ASSIGNOR T0 CONSTRUCTIONDS INDUSTRIELLES DIJNNAISES, OF DIJON, FRANCE.

EXPLOSION-Moron.

Specification of Letters Patent.

p Patented res. sa, raie,

Originalapplicaton filed July 26, 1911, Serial' No. 640,652. Divcdan this application iledugust 1S, 1912. Serial 1510.714361.

To all whom 'it may concern f Be it known that I, JOSEPH LoN THI-4 voLLn, a citizen of the French Republic, residing at Dijon, in France, have invented a certain new and useful Improvement in En plosion-Motors, of which the following is a specication.

Thi'sinvention relates to valve gear for explosion motors and has for its object a 4" cycle explosion motor in which the distribution is eeeted by the rotation of a segmental valve member uncovering, at the proper times, the admission and exhaust ports.

Referring to the accompanying drawing which is a vertical sectional view taken throughl the aXis of a cylinder the annular valve 1v is housed in the compression chamber of the cylinder. The motor piston moves in the remainder of the cylinder as usual. The valve is turned with adiameter slightly larger than that of the cylinder so that when in place its elasticity assures the gas tightness. It is cut away so as to leave between .its extremities aninterval 2 necessary for the passage ofthe gases.

vThe valve is engaged by a cross arm 3 se` cured to a rotatable member 7 passing through the end of the cylinder and having a plate 14 secured to its outer end. In aline- ,ment with the rotatable member 7 there is a second rotatable member 7Ll mounted in any suitable manner and provided at its lower end with a plate 13 which is spaced from the plate 14. The members 7 and 7a form a divided shaft.. In order to rotate the member 7 the plate 13 is provided on its periphery with helicoidal teeth adapted to be engaged by suitable gearing, not shown, so

as to cause the valve to rotateonce for every two rotations of the motor shaft.

Positioned between the plates 13 and 14 is a. dislr'l which carries at its center two rounded pinsl and- 1-7 engaging cylindrical recesses in the axes of the rotatable members 7 and 7B. Each of the plates 13 and-14 is provided with pins 18 and 19, spaced equally distant from the divided shaft and'engaging holes formed in the disk 15. A spring 11 is placed between the plate la. and the cylinderin order to insure against leakage.

of one of the shafts on the other produces symmetrical balanced forces on each of the shafts; a slight decentering of the-shafts could take place without altering the conditions of action. The shaft 7 and the valve 1 are thus protected from reactions whichmight act on the shaft 78.

This application is a division of application Serial No. 640,652, led July 26, 1911. `What I claim as my invention and desire to secure by Letters Patent of the United States is yIn explosion motors, in combination, a cylinder having inlet and outlet ports, a rotatable valve for controlling the'same, a transverse member mounted within said valve and adapted to have Aplay'with respect thereto, a 'divided shaft connected centrally of said transverse member and extending at right angles thereto, a disk interposed between the inner ends of said divided shaft,

one member of said divided shaft extending".

lfor driving said divided shaft, and meansto A.prevent the escape of gases through the shaft bearings.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH LEON 'rrnvoLLn Witnesses: f HENRI Dn BUREN, Eireann JURAND.

,50 It can easily be understood that the action ,v 

